HF5111A

  • Product Code: HF5111A
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Product Overview

  • The HF5111A serial server provides a protocol conversion solution between RS232/RS485/RS422 and TCP/IP, meeting the industrial requirement for serial-to-Ethernet data transmission. This product integrates MAC and other Ethernet hardware protocols, as well as the TCP/IP protocol stack, memory management, a 10/100M Ethernet transceiver, and high-speed serial ports (RS232, RS485, RS422). Based on the Linux operating system, it includes a web interface for convenient remote configuration, monitoring, and debugging. The hardware interfaces comply with national standards, with ESD protection supporting ±15KV air discharge and ±8KV contact discharge.
  • The HF5111A serial server is built on a highly integrated hardware and software platform, optimized for industrial applications, smart grids, and personal healthcare. By simply adding an HF5111A device, you can meet the needs for equipment data monitoring and transmission.

Overview of Characteristic

  • MIPS MCU with 16MB Flash and 32MB SRAM
  • Use Linux Operation System
  • Support TCP/IP/Telnet/Modbus TCPProtocol
  • Support Serial To 10/100M Ethernet Conversion, Serial Speed Upto 460800 bps
  • Support 10/100M Ethernet Auto-Negotiation
  • Support Easy ConfigurationThrough a Web Interface
  • Support Security ProtocolSuch AsSSL/AES/DES3
  • Support  Web OTA Wirelss Upgrade
  • Wide DC Input 5~36VDC or 9~50VDC
  • Size: 94 x65x 25 mm(L x W x H)








Single UART Ethernet Serial Server, It have three Ethernet port include RS232/RS485/RS422. To achieve two way transparent transmission between serial and Ethernet,  ModbusRTU also can transferred to ModbusTCP.



1、Φ5.5mm DC plug and 5mm two wire terminal power supply mode；

2、RS422 is four wire 5mm terminal, RS485 is two wire 5mm terminal,Can connect with grounding wire and improve anti-interference；

3、Power status, network status, data transceiver indicator；

4、The shell contain grounding terminal, To protect internal components and against lightning damage. 



All the components are industry standard, Products passed high-low temperature test chamber -40～85℃, RS485/RS422 increase: Lightning protection, fuse overcurrent protection, TVS anti-static protection;  Ethernet port have 8KV Isolation;

Product passed：CE、FCC、ROHS certificates



Main control use HF MC200、MC102 industry grade solution, Frequency more than 320M! The product enjoy cost effective price and stability performance. Wide DC Input 5~36VDC.




Processor MIPS
Basic Frequency 380MHz
Flash 16MB
SDRAM 32MB
Operating System Linux
Ethernet
Interface Standard RJ45
Rate 10/100M
Protection 15KV electromagnetism isolation, shell insulation blocking
Network Protocol IP，TCP，UDP，DHCP，DNS，HTTP，ARP，ICMP，Web socket，Httpd client，ModbsTCP，NTP，SNMP
Security Protocol Client ：SSL v3（2048bit） Encryption：AES-CCMP、3DES Authentication：SHA-1、MD5、Base-64
Receive Buffer 4K
Port Number 1 port(RS232\RS485\RS422)
Interface Standard RS232：DB9 pin type， RS485：2 wire（A+，B-）, RS422：4 wire（T+，T-，R+，R-）
Data Bits 8
Stop Bit 1
Check Bit None，Even，Odd，Space，Mark
Baud Rate 600 bps~460800 bps
Flow Control RTS/CTS
Buffer 4K
Configuration Built-in webpage：Http Computer set-up software：IOTManager Serial command： CLI Support configuration record：Log Remote Configuration：Telnet
Virtual Serial Windows, XP/Vista, 7， 8，10 Server 2003/2008/2012
Size 95 x65 x 25（mm）
Operating Temp. -40 ~ 70°C
Storage Temp. -45 ~ 105°C， 5 ~ 95% RH（no condensation）
Input Voltage DC 5~36V （also choose DC 9~50V）
Working Current ~200mA
Power <1W
Warranty 1 year
Accessory 1* 5V/1A Power Adapter 1* Ethernet Cable
User Guide
IOT_Device_Series_Software_Funtion_20250328 [ Download Times: 56096,  Date Update: 2025-11-06 15:45:30 ]
HF5111A_User Manual_V1.2(20190416) [ Download Times: 1761,  Date Update: 2019-04-16 19:03:09 ]
PE1X_EE1X_HF51XX_Eport_Operation Guide_20200402 [ Download Times: 18910,  Date Update: 2025-11-06 15:47:01 ]